Setting The Control Box Head Setting For The Head - Brother MD-602 Service Manual

Twin needle sewing machine (SW1-5 = ON)
Head High speed
B842-3 4000
B842-5 3500
B842-1 4000
B872 3000
B845 3000
B847 4000
B848 3000
B837 3000
B877 3000
B878 2500
P73/P81 2200
2400
2600
C51 2200
2400
2600
(Note) If the SW1-2, 5 or SW6-1, 2, 3, 4 settings are changed, the control box head setting will change to "7373"
(SW1-5: OFF) or "8423" (SW1-5: ON).

10.3 Setting the control box head setting for the head

The head must be set except for the B737 (B201) and B842.
(Note) Only the maximum speed is set for the control box head setting. Note that the SW1-6, 7, 8 settings will have the
priority.
10.3.1 Setting procedure
q Before turning on the power, check that the motor pulley diameter matches the machine head.
w Check the settings for DIP switch 1-2 (pulley size) and whether DIP switch 1-5 is set to single needle machines (overlock
machines) or twin needle machines.
e Change to machine head setting mode.
While pressing the sewing speed key
([ ] represents the previous setting value.)
****
r Set the machine head.
1) Meaning of display
The machine head model appears in the ABC columns, and the sub-class appears in the D column.
2) Setting method
a) Press the B [ ] · [
b) For the D column display, press the D [
c) Press the [ ] key to end the setting and store the setting value.
10.3.2 Initializing the machine head setting value
1) When chaning the setting for DIP switches 1-2, 1-5 or 6
Initial value: [ 7 3 7 3 ] when switch 1-5 is OFF (single needle)
[ 8 4 2 3 ] when switch 1-5 is ON (twin needle)
24
DIP switch (SW1-6, 7, 8) setting
Set 2200 rpm and 2400 rpm to 2500 rpm.
Set 2600 rpm to 3000 rpm.
1000 rpm
2500 rpm
3500 rpm
, turn on the power switch. [
] key to set the machine head model.
] · [
] will appear in the ABCD display.
****
] key to set the sub-class.
MD-602, 612
2000 rpm
3000 rpm
4000 rpm